1 files changed, 25 insertions, 0 deletions
diff --git a/dom/ipc/JSValidatorUtils.cpp b/dom/ipc/JSValidatorUtils.cpp
new file mode 100644
index 0000000000..cde22a453f
--- /dev/null
+++ b/dom/ipc/JSValidatorUtils.cpp
@@ -0,0 +1,25 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/JSValidatorUtils.h"
+#include "mozilla/ipc/ProtocolUtils.h"
+#include "mozilla/ipc/Shmem.h"
+#include "nsStringFwd.h"
+
+using namespace mozilla::ipc;
+
+namespace mozilla::dom {
+/* static */
+nsresult JSValidatorUtils::CopyCStringToShmem(IProtocol* aActor,
+                                              const nsCString& aCString,
+                                              Shmem& aMem) {
+  if (!aActor->AllocShmem(aCString.Length(), &aMem)) {
+    return NS_ERROR_FAILURE;
+  }
+  memcpy(aMem.get<char>(), aCString.BeginReading(), aCString.Length());
+  return NS_OK;
+}
+}  // namespace mozilla::dom